Corner-bar.



J. F. HAVEMEYER. CORNER BAR. APPLICATION FILED AUG.20. 1914.

l, 1 69,81 0. Patented Feb. 1, 1916.

INVENTOR WITNESSES J mi 2? f 7 gird/4% Arrow/55 JOHN F. HAVEMEYER, OF ARDSLEY-ON-HUDSON, NEW YORK.

CORNER-BAR.

Specification of Letters Patent.

Patented Feb. 1, 1916.

Application filed August 20, 1914. Serial No. 857,665.

To all whom it may concern:

Be it known that I, JOHN F. HAvnMaYER, a citizen of the United States, and a resident .of Ardsley-on-Hudson, in the county of VVestchester and State of New York, have invented an Improvement in Corner-Bars, of which the following description,- in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

The present invention relates to an improvement in corner bars for use in connec tion with concrete construction, the object being to provide a protective bar of superior strength and one which may present a neat and finished appearance when anchored in position in the concrete.

In the accompanying drawings which illzstrate one embodiment of my invention as applied to metallic corner bars, Figure 1 is a view partly in longitudinal vertical section, Fig. 2 isa crossection on the line 2-2 of Fig. 1 and Fig. 3 is a perspective view showing a bar applied to a corner. Fig. 4 is a cross section of a modified form of bar.

In the illustrated embodiment of my invention, a protecting member 1 of any suitable cross sectional shape may be attached to a concrete mass 2 shown in Fig. 3 as forming a corner which is thus effectively covered and protected from possible crumbling or fracture resulting from impact. The protecting member is itself reinforced to withstand transverse bending or fracture by means of a web 3 extending longitudinally thereof and preferably on the under side. The web 3 may also serve to prevent lateral shifting of the bar with respect to the concrete mass in which the web becomes embedded. Anchoring means, as projections 4 with intermediate base portions 5 may be provided to retain the reinforced web in position.

The preferred forms of anchoring means are shown in the drawings. One form, as illustrated in Figs. 1 and 2, may comprise a plurality of strips cut from the edge of the web 3 and bent to form an oblique angle therewith. The strips having their fastening portions adjacent are thus adapted to form prong shaped pairs, the material between each two pairs being used entirely in forming the prongs. The length of the pro jections and their distance apart may readily be determined by the character of the work or the extent of anchorage required.

In the modified form illustrated in Fig. 4, the projections 4 are displaced laterally to form an angle with the web, each alternate projection being deflected to the same side or, if desired, each alternate pair of diverg ing projections may' be so deflected. lVhile the prong shaped projections shown in the drawings, make up anchoring units of a preferred form, it is contemplated that other similar forms mav conveniently be substituted therefor without departing from my invention.

The present improvement makes it possible to roll a corner bar with a comparatively shallow web, thus'saving a substantial amount in the cost of manufacture.

In the bars of this type heretofore used, it was generally thought necessary to provide a relatively deep web in order to secure it properly. in the concrete; and such web was commonly, although not always, imperforate. Such constructions obviously required more metal and for this reason were not economical. Moreover, where a solid web was used and extended into the concrete for a considerable distance, it served to divide the concrete into two masses at its thinnest portion, thus weakening its resistance against fracture. With my improved bar, the diverging projections may be'extended into the concrete mass to any extent required without increasing the amount of metal in the web; and the anchorage soformed retains the bar securely in place without Weakening the concrete against fracture.

I claim'as my invention:

1. A corner bar, for use in concrete construction or the like, having a head and a web normal thereto and means formed integral with the web to retain the bar securely in the concrete, the said means comprising a plurality of pairs of prongs, the prongs of each pair diverging from the web and being united thereto by a base portion which pro jects from the web and corresponds in width substantially with the width of the prongs, and the distance between any two adjacent base portions being substantially equal to the combined length of the two adjacent prongs of the two corresponding pairs of prongs, the construction thus provided being one in which the prongs may be formed by, longitudinally shearing the Web and the longitudinally extending Web 3 projecting normally rom one face of the head, the

. bases 5 integral with. the web 3, and the prongs t providing integral extensions at each end of the bases ,5, the two prongscorresponding to each base diverging to produce a secure anchorage for the bar and the distance between any two adjacent bases being substantially equal to the combined. length of the'two prongs extending from the adjacent ends of said bases.

In testimony whereof, I have signed my name to this specification, in the Presence of two subscribing witnesses, this l8th day of I August, 1914:.

JOHN F. HAVEMEYER.

l'Vitnesses:

C. W. VVINDEKNECHT,- HARRY L. MGGEE. 

